Boart Miners' Diamonds for Tunneling Equipment from Mexico
Irregular boart diamonds for tunnel boring machine cutters in underground mining operations. These unworked miners' diamonds fall under HTS 7102.29.0020 as other industrial variants. Their toughness excels in rock penetration tasks.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Use ISDN (International Standard Diamond Notation) for accurate grading in entries
• Segregate shipments by mine origin to leverage preferential duty programs